Weather in Omaha in May

A good month. May works. It is not the peak, but nothing about it fights you. Highs average 23.1 °C, lows 10.5 °C, and rain falls on 13 days — nothing in the month is working against you.

May ranks 4 of 12 in Omaha: past the worst of the year but short of September, which is the month to book if the dates are open.

Rain on 13 days, 4 of them heavy. Enough to need a plan B, not enough to need a plan around it. Nothing specialised needed — this is the month you pack for the trip rather than for the weather.

What the averages hide

The averages here are honest — no hidden extremes worth planning around. Across the twenty years measured, the hottest May day reached 37.3 °C and the coldest night fell to -3.2 °C, and the wettest single day dropped 66 mm — roughly 55% of the month's rain in one day.

May is statistically steady but not small: the year-to-year variation is modest in relative terms, yet the wettest May on record still delivered 184 mm against 43 mm in the driest. In a month this wet, even a tame spread is a lot of rain in absolute terms — the 121 mm average is a reasonable planning figure, not a promise.

Wind is light at 13 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 69%.

How May sits in the year

The month is on the way up: 5.5 °C warmer than April, and June adds another 5.6 °C. Late in the month feels noticeably different from the start of it, which is worth knowing if the trip is short.

Daylight in May

May is at or near the longest days of Omaha's year: 14.5 hours of daylight, gaining 1 hours across the month. Evenings are the real gain — dinner outdoors still happens in full light.

An inland climate

Omaha has no sea to moderate it, and it shows: 41.2 °C separates the hottest afternoon of the year from the coldest night. That is a genuinely continental range, and it means summer and winter here are barely the same place.

How busy it gets

Peak season. Expect the highest prices of the year and to be booking well ahead.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

May in Omaha versus nearby

If Omaha is one option among several, the nearby comparison is worth making. Des Moines is close enough to be a coin toss — within a degree on temperature, 1 day more rain. Sioux Falls is close enough to be a coin toss — within a degree on temperature, 1 day less rain.

So: May is effectively as good as it gets here — 6 points behind September, which is inside the margin where the weather stops being the deciding factor and price starts being it.

Every month in Omaha

See all twelve months in Omaha, or where else to go in May.